Focal range (type of lens)
Be aware the limited wide angel possibilities of many of the lower range compact cameras. When shooting in-house a wide angel lens is very convenient. Many compact digital cameras have fairly good zooms.
Focal range
In photography, the portion of an object that is in focus. Also called Depth of field.
Lenses with a focal range above 100mm are classed as telephoto. These allow you to zoom in on the action. The higher the number, the further in your camera can zoom.
Pros - entire focal range of a lens is useable
Con - loss of light, therefore slightly dimmer viewfinder, auto-focus doesn't work as well. with a 1.4x tele, you lose 1 stop of light. 1.7x, 1 1/2 stops.
It has a desirable focal range and a very tempting price tag, but can the Sony 75-300 f/4.5-5.6 Macro deliver good enough quality?
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TAGS: tele, telephoto, zoom lens, sony ...
6 G ED-IF AF-S VR DX Lens - this lens makes a great option for everyday shooting with a fantastic focal range which gives both a reasonably wide angle and reach.
Twenty feet is therefore called the 'focal range' of the lens when this stop is used. The focal range is consequently the distance of the nearest object, which will be in good focus when the ground glass is adjusted for an extremely distant object.
Most flashguns today have a zoom function with focal range of 24-105 mm. Depending on the focal length of your lens, the angle of coverage gets adjusted to light up the subject sufficiently.
The effect is most pronounced when you zoom through the entire focal range, so choose a relatively slow shutter speed—preferably 1/8 second or longer.
2) Second, and more meaningfully, the lens could have a focal range that's useful for digital cameras with subframe (ie: smaller than equivalent film) sensors.
This problem is not relevant at all shutter speeds reciprocal to lens's focal range (for example 1/200 for 200 mm lens) but it can and will have an effect between, lets say, 1/60s and 1/4s. So what can be done about it?
Depth of Field - Refers to the distance between the closest and farthest sharp or in-focus portion of a photograph (also called the focal range).
Core features include a 12x optical zoom lens with an effective focal range of 28mm-336mm, a backlit CMOS sensor with a maximum output resolution of 12MP and a 3.2 inch touchscreen LCD, which is central to the camera's operation.
This particular focal range is extremely useful for the job. I do, however, also use the Canon 100mm f/2.8 macro lens and, for the wide-angle quirky shots, the Canon 17-40mm f/4 USM lens.
Image quality is very sharp through the intire focal range, only slightly dropping off at 400mm @ 5.6.
Canon EF 2.8 24-70mm zoom lens. Topside, this lens is on my camera 90 percent of the time. A practical focal range, outstanding sharpness and very low distortion.
Here's something for you to think about though: statistically speaking, doesn't it seem a bit odd that these always end up being the choices you make? Why nothing in the middle of the focal range?
So, with that in mind I would recommend using either a 17-55mm or 24-70mm zoom lens which will give you the digital equivalent of the older 'traditional' portrait 85mm to 110mm focal range in the film era days.
Due to the physics of focusing, the image will be sharp from the foreground to background as long as it falls into the hyper focal range.
Combining an incredible 35x ultra-wide-angle zoom lens, full manual control and Full HD movie capture, the PowerShot SX40 HS is ideal for photographers who want the flexibility and control of a DSLR and the versatility of a huge focal range packed ...
the model, often making eye contact, in an effort to keep things more intimate. The less experienced photographer can let this situation get away from them and by not looking through the lens they won't notice the model moving out of the focal range.
For cameras with interchangeable optics, an additional selection list can appear. It is displayed when the lens type cannot be detected automatically from EXIF data or when a number of lenses have the same focal range.
 See also: Focal, Photograph, Photography, Lens, Light
  
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